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Expression profiling of grass-clump dwarf in syntheitic hexaploids from triploid hybrids crossed between tetraploid wheat and Aegilops umbellulata.

ABSTRACT: We have employed whole genome microarray expression profiling as a discovery platform to identify genes to alter the transcript accumulation levels in a grass-clump dwarf line, which is a synthetic hexaploid line from triploid hybrids crossed between tetraploid wheat (Triticum turgidum ssp. durum cv. Langdon) and a diploid wheat relative Aegilops umbellulata (KU-4052). Up-regulation of metabolic and catabolic processes-related genes for cell wall-associated molecules was observed, and down-regulation of wheat APETALA1-like MADS-box genes, considered to act as flowering promoters, was found in the grass-clump dwarf line. Unusual expression of the branching-related SPLs and flowering time regulation-related MADS-box genes could explain the grass-clump dwarf phenotype.

ORGANISM(S): Triticum aestivum

PROVIDER: GSE93969 | GEO | 2017/01/24

SECONDARY ACCESSION(S): PRJNA362952

REPOSITORIES: GEO

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Expression profiling of grass-clump dwarf in synthetic hexaploids from triploid hybrids crossed between tetraploid wheat and Aegilops tauschii

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